Tuyere



Sept. 29, 1931. 1.. M. NESSELBUSH 1,824,919

Filed July 17, 1929 Louis W MsseZLysiz flu .9

Patented Sept. 29, 1931 UNITED STATES PATENT" OFFICE COMPANY, OF YOUNGSTOWN,

Application filed July 17,

high temperatures or are liable to be splashed by molten metal in use.

The present invention however, is illustrated as embodied in a blast furnace tuyere but it is to be understood that the term tuyere as hereinafter appearing in this specification and in the claims, is to be understood to include in its meaning, any and all of the above described devices to which this invention has application.

It is an object of this invention to provide.

tuyres of improved character having a nose portion protected with refractory material, all of such construction that a relatively cheap, yet highly efiicient device is provided and one which has a longer life and gives greater satisfaction and use than 'tuyeres heretofore devised;

which is covered with .an outer protecting metal shell and is provided with metallic web portions extending between the outer protecting shell and a wall of the water compartment, whereby to convey heat rapidly from the outer shell in a manner to coolthe outer shell and prevent damage thereto.-

A further object is to provide a-tuyere which has refractory material covering the ..ends of the water compartment, and also covering the sides of the water compartment throu bout that portion of the length thereof whlch is subjected to the most severe damage, to provide openings in the side of the ituyere at locations intermediate the length thereof and removed from the nose portion, through which refractorymaterial may be introduced into the compartmentsor space provided therefor.

Another object ofthis invention is to provide a tuyere havin aprotective covering of refractory material and ametallic protecting wall for said refractory material in which the refractory material is contained ..'in small compartments separated by walls 1n place,

LOUIS M. NESSELBUS H, OF YOUNGSTOWN, OHIO, ASSIGN'OR TO THE FALCON BRONZE OHIO, A CORPORATION OF OHIO k Tux-mm 1929. Serial No. 378,827.

which serve to hold the refractorymaterial even though the outer wall has ome completely worn away and which also serve to rapidly conduct the damaging heat at the outer surface of the nose portion of the tuyere to the water compartment.

It is a further object of this invention to provide a tuyere, the entire variation in length of which is relatively small, as compared with other known types of tuyeres,

aving noses proteotedwith refractory materialwhereby a better and more accurate COliltI'Ol ofthe wind penetration is realized.

t is that the degree of penetration of the wind introduced therein depends upon the length of the tuyere and accordingly it is desirable known in the use of blast furnaces to have a tuyre, the over-all length" of which will not be reduced to any material extent in use, as variations in length make for different and uncontrolled degrees of Y wind penetration. A further object of this invention is toprovide a tuyere, the refractory nose of occasioned by deterioration and wearing away, in use.

Another object of this invention is to provide a tuyere which increases the value of the cooling chamber of the tuyere as means are provided for conducting the-heat from the outer surface of the nose portion into the cooling chamber.

A further object of this invention is to provide a tuyere which oflers a maximum resistance to wear as well as heat. The ordinary standard tuyeres now in use are relatively resistant to wear but are subject to being readily burned out, whereas refractory nose tuyres are quite resistant. to heat but do not embody a maximum resistance to wear. The present invention aims to com-.

facture, and willresist, to a maximum degree, deterioration and wearing away, under the exposure to heat and friction occasioned in use and yet even though the outer protect- V long life and yet is relatively cheap to manuing metal shell becomes worn away, is one which provides a completely operative and relatively durable tuyere, capable of a further relatively long period of use.

Various other objects not specifically enumerated herein, are accomplished by this invention as will readily appear to one skilled in the art as the description hereinafter given proceeds.

It is to be understood that the following detailed description covers merely one preferred form of the present invention and 1s given by way of illustration and is not to be considered as limiting the invention in any respect.

The full scope of the invention may be determined from an understanding of the present illustrative embodiment thereof and an appreciation of the advantages which the present invention produces therein.

The following disclosure will be more readily understood by referring to the accompanying drawings in which Figure 1 is a longitudinal cross sectional view taken on the line 11 of Figure 2, and constructed in accordance with the present invention.

Figure 2 is a transverse cross sectional view taken on the line 2-2 of Figure 1.

By referring to the drawings, it will be noted that the present invention is illustrated as embodied in a tuyere 10, of the usual hollow annular construction, having the wind passage 11 and the water compartment 12. The water enters and leaves the compartment 12 through the openings 13 and 14 which may be provided in any suitable number.

The outer wall 15, of the tuyere is preferably provided with a relatively shallow taper whereby the inner end or nose portion of the tuyere will approach the maximum diameter for the opening through which it is introduced in installation. This makes for greater water capacity and provides ample room for adequate covering of refractory material and yet permitting the water chamber to extend practically to the inner end of the tuyere.

The water compartment 12 at the inner end is reduced in size by the partition 17 which extends from the outer wall 15 to the inner wall 18 of the tuyere. The wall 17 is arranged as shown and provides with the outer wall portion 19, of the tuyere, compartments 20, for receiving the refractory material 21. s

Extending radially between the inner wall 17 and the outer wall 19, are a plurality of radial walls 22, which divide the refractory compartment or space into a plurality of smaller refractory compartments such as is clearly shown in Figure 2. These compartments are of the shape shown in Figure 1 and have their outer ends extending fractory material is introduced.

through the outer wall of the tuyere to provide an opening 23, through which the re- It "1s obvious from this construction, that the outer wall 19 covering the refractory material, offers great protection to the refractory material and that any damaging heat at this location is rapidly conveyed inwardly through the walls or webs 22to the i partment-is ca able of'having a maxlmum watercompartment whereby the water comcooling effect or the tuyere. It will also appear that if the outer wall 19 is completely worn away, that the refractory material will still be held in position surrounding and protecting the nose of the tuyere by means I of the webs or walls 22. A tuyere in this condition, is still capable of prolonged use and offers all of the advantages of refractory nose tuyeres. It will also appear that all of the other objects and advantages polnted out for this invention are accomplished in this construction.

It is to be understood. that the various changes and modifications are contemplated, all as will fall within the scope of the invention as is pointed out in the appended claims.

I claim:

1. A tuyere of integral metal having in combination, a water compartment and a compartment for refractory material located in the nose thereof, and surrounding a portion of the water compartment and metallic webs extending betweenthe outer wall of said second named compartment and the wall between said water and refractory compartment.

. 2. A tuyere of integral metal having in combination, awater compartment and a compartment for refractory material located in the nose thereof, said compartments having a wall in common therebetween extending longitudinally of said tuyere and metallic web means extending from said wall to the outside wall of said tuyere.

3. A tuyere of integral metal comprisin an annular hollow member, a partition a jacent the nose thereof for dividing said member into a water compartment and a compartment for refractory material, and metallic web members extending from said partition to the outside wall'ofsaid tuyere through said compartment for refractory material.

4. A tuyere of integral metal having in combination, a water compartment and space for refractory material, said space comprising a plurality of independent compartments overlying the end and a portion of the sides of said watercompartment, eachseparated from the other by a metallic wall.

5. A tuyere of integral metal having in combination, a water compartment and space for refractory material, said space comprising a plurality of independent compartments overlying the end and a portion of the sides of said water compartment, each separated from the other by a metallic wall and each having a filling opening in the side of the tuyere removed for the nose thereof.

. 6. A tuyere of integral metal of the character described havin a water compartment and a compartment gr refractory material, said last named compartment having outer and end Wall coverings, and web members of high heat conductivity extending between said outer and end wall coverings and a wall of said water compartment.

Signed at Youngstown, Ohio, this 12th day of July, 1929.

LOUIS M. NESSELBUSH. 

